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Finding the Fourth Proportional to 120,636.61, 166,678.76 and 95,337

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Solution

The fourth proportional to 120,636.61, 166,678.76 and 95,337 is: 131,723.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,636.61 : 166,678.76 = 95,337 : x
  2. Step 2: Convert to fraction form
    120,636.61/166,678.76 = 95,337/x
  3. Step 3: Cross multiply
    120,636.61x = 166,678.76 × 95,337
  4. Step 4: Simplify right side
    120,636.61x = 15,890,653,180.46
  5. Step 5: Solve for x
    x = 15,890,653,180.46/120,636.61
  6. Step 6: Final answer
    x = 131,723.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.